Automatic pressure-roll release for clothes-wringers.



.I. F. HEMENWAY.

AUTOMATIC PRESSURE ROLL RELEASE FOR CLOTHES WRINGERS.

APPLICATION men OCT. 26. 1916.

1 41 o Patented May 1, 1917.

' jg 1] 9 16 v JOHN F. HEMENWAY, OF NEW YORK, N. Y.

AUTOMATIC PRESSURE-ROLL RELEASE FOR CLOTHES-WRINGERS.

Specification of Letters Patent.

Patented May 1, 1917.

Application filed October 26, 1916. Serial No. 127,905.

To all whom it may concern:

Be it known that I, JOHN F. HEMENWAY, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Automatic Pressure-Roll Releases for Clothes- WVringers, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to certain new and useful improvements in automatic pressure roll release for clothes wringers, the object being to improve the general construction of releasing mechanisms by providing the side bars of the frame with plates for the pivoted latches which are so constructed that the side bars are strengthened and the top bar is mounted in such a manner that the same wlll move freely upwardly when released.

Another object of the invention is to provide a novel form of latch which is engaged by releasing members slidably mounted in the plates carried by the. side bars in such a manner that the releasing bars are guided in the upward movement so as to engage the arms of the latches in order to rock the latches on their pivots so as to move the same out of engagement with the top bar, means being provided for limiting the swinging movement of the latches.

Another object of my invention is to provide a releasing mechanism in which a top bar is provided with metal plates at its ends forming keepers which are provided with recesses to receive the pivoted latches, and inwardly projecting portions of the plates so as to limit the upward movement of the top bar when the latches are moved out of engagement therewith.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

In the drawings,

Figure 1 is a side elevation of a clothes wringer partly in section showing the application of my improved construction of pressure roll release thereto; I

Fig. 2 is a detail top plan View of an end portion of a clothes wringer showing the release;

Fig. 3 is an end elevation of the wringer showing the release in locked position;

Fig. 1 is a detail perspective view of a pivoted latch;

Fig. 5 is a perspective view of one of the plates carried by the side bars;

Fig. 6 is an end view of the top bar showing the keeper; and i Fig. 7 is a detail view of a slightly modi fied form of adjustable trip member.

Like numerals. of reference refer to like parts in the several figures of the drawing.

In the drawing I have shown my improved construction of pressure release applied to a clothes wringen comprising a frame 1 having slotted side bars 2 in which are mounted bearings carrying pressure roll shafts 3 and 4 provided with the usual pressure rolls, the upper bearings being pro vided with spring supports 5 carrying pressure springs 6 on which are mounted hearing plates 7 carried by a pressure bar 8.

Secured to each of the side bars is a plate 9 which is provided with spaced inwardly projecting flanges 10 extending into the slots of the side bars and between which is arranged a movably mounted top bar 11 which has secured to its ends keepers 12 which are provided with recesses 13 adapted to receive the inwardly projecting lugs 14 formed on the upper ends of the plates 9 so as to limit the upward movement of the top bar within the frame when released as will be hereinafter fully described.

The top bar is provided with threaded boxes carrying pressure screws 15 which are adapted to engage the bearing plates 7 for adjusting the pressure on the pressure rolls in the ordinary manner. The plates 9 are provided with slots having outwardly projecting bearings 16 to each side thereof at their lower ends which register with notches 10 formed in the flanges 10 adapted to receive the pivots 17 of a pivotedlatch 18 so as to allow the pivots 17 tobe forced into position within the bearings 16, the hook portions of the latches 18 being reduced as shown at 19 and adapted to extend through the slots of the plates into the recesses 13 of the keepers 12 carried by the movably mounted top bar for holding the bar in predetermined position within the frame so that the pressure screws can be-adjusted. The spaced parallel flanges 10 of the plates 9 form a guidew'ay for a releasing member 20 which carries a pin 21 working in a slot 22, formed in the lower end of the plate 9 for holding the releasing member 20 in position on the plate. The lower end of the releasing member 20 is offset and carries a thumb bolt 23 on which is mounted a slotted trip member 2 1 locked in its adjusted position by a thumb nut 25, said trip member being ar- .when said releasing member is moved upwardly so as to swing the latch out of the keeper of the top bar in order to release the top bar so that the same can move upwardly to release the pressure on the pressure rolls, the movement of the latch being limited by a stop lug 27.

From the foregoing description it will be seen that I have provided a clothes wringer in which a plate is secured over the outer faces of each of the side bars having inwardly projecting spaced flanges forming a guideway for the movably mounted top bar at their upper ends, and a guideway at their lower ends for the releasing members so that the releasing member and top bar can move freely between the flanges. It will also be seen that by providing the top bar with metal keepers at its ends having recesses to receive the pivoted latches and stop lugs, the top bar will be held rigidly in predetermined position and in such a manner that when released, the upward movement thereof will be limited.

In the modification shown in Fig. 7 the releasing member 28 is provided with a threaded bore 29 in which is mounted a machine screw 30 formed in an adjustable trip member which is adapted to be arranged in the path of travel of one of the pressure roll shafts for moving the releasing member upwardly as the roll is moved upwardly so as to operate the latches to release the top bar.

In the operation of the automatic pressure roll release as herein shown and described, assuming that the parts are in the position shown in Fig. 1 when a foreign object is drawn between the pressure rolls, the rolls are separated, the shaft of the upper roll moving upwardly into engagement with the trip member of the releasing member so as to move the releasing member upwardly into engagement with the arm of the latch which swings the latches outwardly out of the keepers of the top bar and allows the top bar to move a predetermined distance within the frame in order to release the pressure on the pressure rolls.

I claim:

1. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, plates secured to the side bars of said frame having spaced flanges extending into the slots of the side bars a top bar having metal keepers at its ends slidably mounted betweenv said flanges, means carried by said top bar for adjusting said pressure means, pivoted latches carried by said plates engaging said keepers for holding said top bar in predetermined position within said frame, releasing members slidably mounted on said plates between said flanges, arms carried by said latches arranged in the path of travel of said releasing members, and trip members carried by said releasing members arranged in the path of travel of the shaft of one of said pressure rolls on the separation of said rolls for moving said releasing members into engagement with the arms of said latches for swinging said latches out of said keepers to release said top bar.

2. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, a top bar having metal keepers at its ends slidably mounted in said frame, pivoted latches carried by the side bars of said frame engaging said keepers, said latches having arms extending therefrom, and releasing members adapted to engage the arms of said latches for swinging said latches out of engagement with said keepers, said releasing members having adjustable trip members actuated by the separation of said pressure rolls for operating said releasing members for releasing said top bar.

3. A clothes wringer, comprising a frame having slotted side bars, pressure rolls and pressure means for said rolls mounted in said frame, plates secured to said side bars having parallel flanges extending into the slots thereof, a top bar having metal keepers at its ends, slidably mounted between the flanges of said plate, said keepers having recesses, stop lugs formed on the upper ends of said plate extending into said recesses, said plates having bearings, latches provided with pivots mounted in saidbearings adapted to extend into the recesses of said keepers for holding said top bar in predetermined position therein, said latches having inwardly extending arms, and trip members slidably mounted between the flanges of said plates under said arms adapted to be moved upwardly into engagement with said arms on the separation of said rolls for moving said latches out of said keepers for releasing said top bar.

4. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, said frame having slotted side bars, slotted plates secured to the outer faces of said side bars having spaced flanges extending into the slots thereof, a top bar having metal keepers at its ends slidably mounted between the flanges of said plate, said'keepers having recesses,

stop lugs formed on the upper ends of said plates extending into the recesses of said keepers, retaining members pivotally mounted on said plates engaging said keepers for holding said top bar in predetermined position within said frame, and means actuated by the abnormal separation of said rolls engaging said retaining members for moving said retaining members out of engagement with the keepers of said top bar.

5. A clothes wringer, comprising a frame having slotted side bars, pressure rolls and pressure means for said rolls mounted in said frame, plates secured to the side bars of said frame, a top bar having metal keepers at its ends slidably mounted in said frame, bearings formed on said plates, pivoted latches mounted in said bearings engaging said keepers for holding said top bar in predetermined position within said frame, arms formed on said latches, and releasing members slidably mounted on said plates engag ing the arms of said latches on the separation of said pressure rolls for moving said latches out of said keepers for releasing said top bar.

6. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, said frame hav ing slotted side bars, slotted plates secured to said side bars having spaced flanges extending into the slots thereof, said plates having bearings, pivoted latches mounted in said bearings, a top bar having keepers at its end adapted to receive said latches, arms formed on said latches extending inwardly between the flanges of said plates, releasing members slidably mounted between the flanges of said plates adapted to engage said arms for moving said arms out of the keepers of the top bar, and adjustable trip members carried by said releasing members arranged in the path of travel of one of said pressure roll shafts.

7. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, said frame having slotted side bars, slotted plates secured to said side bars having spaced flanges extending into the slots thereof, atop bar slidably mounted between said flanges having metal keepers at its ends, stops formed on the upper ends of said plates for limiting the upward movement of said top bar, pivoted latches mounted in said plates engaging the keepers of said top bar for holding said top bar in predetermined position within said frame, means carried by said top bar for adjusting said pressure means, arms extending'inwardly from said latches, releasing membersslidably mounted between the flanges of said plates and adapted to engage said arms on the upward movement'thereof for moving said latches out of the keepers of said top bar, and adjustable trip members carried by said releasing members adapted to be engaged by the shaft of one of said pressure rolls on the upward movement thereof. 7

8. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, a top bar slidably mounted in said frame, pivoted latches carried by the side bars of said frame engaging said top bar for holding said top bar in predetermined position within said frame, arms extending inwardly from said latches and releasing members engaging said arms'on the abnormal separation of said pressure rolls for moving said latches out of engagement with said top bar for releasing said pressure means.

9. A clothes wringer, comprising a frame having pressure rolls and. pressure means for said rolls mounted therein, a top bar movably mounted in said frame, plates secured to the side bars of said frame having plates extending into the slots thereof, pivoted latches mounted in said plates having inwardly projecting arms, said latches engaging said top bar for holding said top bar in predetermined position Within said frame, and releasing members slidably mounted between the fianges of said plates engaging the arms of said latches on the abnormal sepa-' ration of said pressure rolls for moving said latches out of engagement with said top bar for releasing said pressure means 10. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, a top bar movably mounted in said frame having keepers at its ends, plates secured to the side bars of said frame having inwardly projecting lugs cooperating with the keepers of said top bar for limiting the upward movement of said top barwithin said frame, pivoted latches carried by said plates engaging said keepers for holding said top bar in predetermined position within said frame, and releasing members carrying trip members actuated by the abnormal separation of said -rolls engaging said latches for moving said latches out of said keepers for allowing said top bar to move a predetermined position within said frame.

11. A clothes wringer, comprising a frame having pressure rollsand pressure means for said rolls mounted therein, plates secured to the outer faces of said side bar s,

having bearings communicating with slots formed in said plates, a top bar movably mounted in said frame, latches provided with pivots mounted in said bearings, said latches engaging said top bar for holding said top bar in predetermined position within said frame, and means actuated by the abnormal separation of said rolls engaging said latches for releasing said top bar.

12. A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls, plates secured to the side bars of with inwardly projecting arms, and releasing members slidably mounted on said plates adapted to' engage said arms for swinging said latches out of engagement with said top bar, said releasing members being actuated by the abnormal separation of saidpressure rolls.

1?). A clothes wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, a top bar movably mounted in said frame, plates secured to the side bars of said frame, retain ing members carried by said plates for holding said top bar in predetermined position within said frame, and releasing members slidably mounted on said plates engaging said latches on the abnormal separation of said pressure rolls for moving said latches out of engagement of said top bar for releasing said pressure means.

14. A clothes Wringer, comprising a frame having pressure rolls and pressure means for said rolls mounted therein, a top bar movably mounted in said frame, plates secured to the side bars of said frame, latches pivotally mounted on said plates engaging said top bar for holding said top bar in predetermined position within said frame, said latches being provided with arms, releasing members slidably mounted on said plates engaging the arms of said latches for moving said latches out of engagement with said top bar, and trip members carried by said releasing members arranged in the path of travel of one of said pressure rolls and adapted to be actuated thereby on the abnor mal separation of said rolls for releasing said pressure means.

In testimony whereof I hereunto aflix my signature.

JOHN F. HEMENWAY. 

